Disposable surgical mask for single-use, Type IIR (acc. to EN 14683:2019), hydrophobic, blue, 3-ply, elastic ear loops, pliable nose piece, dimensions 175 x 95 mm Features: Medical Device Class I 3-ply (PP spun bond inner and outer layers, PP melt blown filter layer) Latex-free, fiberglass free Bacterial Filtration Efficiency (BFE): 98%* Breathability (differential pressure Pa/cm): < 60 Splash resistance: 16 kPa SU = 50 pcs in a dispenser box
Microsilica (silica fume) is a by-product of silicon metal or ferrosilicon industries, is an amorphous silicon dioxide SiO2. This product reacts chemically with the calcium hydroxide in the cement paste which yields a calcium silicate hydrate gel that significantly enhances strength and durability. The super fine microsilica fills the voids between cement particles creating a very dense, less permeable concrete. Physical characteristics: Color: gray or gray white powder Bulk density: 320-700 kg/m3 Chemical composition: Items SiO2 Al2O3 Fe2O3 MgO CaO Na2O Moisture Content 75-98% 1.0-0.2% 0.9-0.3% 0.7-0.1% 0.3-0.1% 1.3-0.2% Fineness: the fineness of the silica fume is less than 1 1/4m, and the average particle size is 0.1 0.3 1/4m, and the specific surface area is 20 - 28 m2/g. The fineness and specific surface area are about 80-100 times of cement and 50-70 times of fly ash. Maxtech Micro Silica supplies will be as per QCS 2014 (ASTM C1240): SiO2: >/= 92% LOI:
Polypropylene 20GSM non-woven fabric inner layer, skin friendly & allergy free Polypropylene 20GSM non-woven fabric outer layer, skin friendly & allergy free. Melt blown 25GSM bacterial filter in between inner & outer layers (BFE > 95%). Soft Aluminum nose wire piece. Resilient cotton ties. Multiple pleats. Hypoallergenic.
3-ply-face-masks.
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3 Ply Medical Face Masks.
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-:-3-ply-and-k-95-medical-face-mask.
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